Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 8161802 | Handheld tensiometer featuring automatic regulation of the bubble life by measuring and regulating the gas volume flow A hand tensiometer for measuring the surface tension of liquids or for measuring of substance concentrations in a liquid wherein a gas volume stream entered from a gas source (10) through a buffer storage (11) into a measuring capillary (3) form... | 04/24/2012 |
| 7343784 | Method and device for forming a liquid—liquid interface, especially for surface tension measurement The present invention is directed to a method and a device for forming an interface between a first and a second essentially immiscible liquid, especially for the measurement of the surface tension at said interface. According to the invention, a volume of the first... | 03/18/2008 |
| 7308822 | Capillary devices for determination of surface characteristics and contact angles and methods for using same Devices are presented which allow determination of unknown surface properties through the creation of a channel capillary, comprised in part of the subject surface or surfaces, and measurement of the capillary pressure created by a test fluid within the resultant ch... | 12/18/2007 |
| 7281413 | Acoustic method for determining the viscosity and/or surface tension of a liquid The present invention comprises a noncontact method for measuring viscosity and/or surface tension information of a liquid in a liquid containment structure. The steps of the method include exciting a surface of the liquid with an excitation burst of acoustic energy... | 10/16/2007 |
| 7281416 | Method for surface tension measurement The present invention is directed to a method for measuring the surface tension of a sample comprising providing a well plate, containing at least one well defined by well walls and an opening and forming a space for receiving the sample to be tested, bringing a pro... | 10/16/2007 |
| 7266995 | Method and instrument for measuring surface tension For measuring the surface tension between a liquid and fluid such as a gas, a capillary (3, 3′) is used in which the liquid slowly flows and at the end of which drops (11) are formed, falling off into a closed space (7) containing the fluid. U... | 09/11/2007 |
| 7249492 | Method and device for evaluating and/or adjusting the cleaning performance of a cleaning liquid A method and device are provided for measuring and/or adjusting the cleaning performance of a cleaning liquid. One method of the invention includes determining a control value (i.e., the number of drops of the cleaning liquid to provide a selected volume) indicative... | 07/31/2007 |
| 7237431 | Apparatus and method for measuring viscosity An apparatus and methods for analysis of a petroleum product, specifically determining the viscosity of a sample, are disclose. The apparatus includes a sample reservoir for receiving a liquid sample and a pressure regulator for applying hyperbaric pressure to a sam... | 07/03/2007 |
| 7224470 | Method and apparatus for measuring surface configuration A method of measuring the surface configuration of a liquid surface, e.g. to measure surface tension. Liquid samples are confined in wells, e.g. of a multi-well microtitle plate, and a light beam is passed through the sample offset from the centre of the well. The i... | 05/29/2007 |
| 7155962 | Method and apparatus to study a surfactant The invention relates to a method of and an apparatus for studying properties, especially physical properties of a surfactant. A fluid is introduced in the form of a sample volume in another fluid which is immiscible with said fluid so that an interface is formed be... | 01/02/2007 |
| 7024921 | Capillary devices for determination of surface characteristics and contact angles and methods for using same Devices are presented which allow determination of unknown surface properties through the creation of a channel capillary, comprised in part of the subject surface or surfaces, and measurement of the capillary pressure created by a test fluid within the resultant ch... | 04/11/2006 |
| 7025836 | Modification of surfaces in order to increase the surface tension A process is provided for the production of a surface coating as well as the use of surface coatings to increase the surface tension of objects. The surface coating is obtained by depositing a layer of at least one element that can be oxidized with water or an alloy... | 04/11/2006 |
| 7000457 | Methods to control and/or predict rheological properties Methods to predict the rheological properties of composition comprising a filler in a matrix are described. The present invention further involves determining the difference between the work of cohesion and the work of ahhesion for a filler and a matrix in order to ... | 02/21/2006 |
| 6925856 | Non-contact techniques for measuring viscosity and surface tension information of a liquid A non-contact method for measuring viscosity and surface tension information of a liquid in a first liquid containment structure. The steps of the method include oscillating a free surface of the liquid in the liquid containment structure; detecting wave characteris... | 08/09/2005 |
| 6915680 | Method and system for determining surface tension using the bubble pressure method A method for determining a surface tension of a solution in a container using a bubble pressure process includes introducing a gas volume flow into the solution using a capillary. A time-dependent pressure profile of the gas volume flow is determined during bubble f... | 07/12/2005 |
| 6867854 | Liquid to solid angle of contact measurement A liquid to solid material surface contact angle measurement system operating by way of detecting a transition in the behavior of a liquid sample with the solid material in a changing angular confinement environment along with use of a mathematical algorithm to then... | 03/15/2005 |
| 6857309 | High throughput mechanical rapid serial property testing of materials libraries A library of materials is screened for mechanical properties such as surface tension or interfacial tension. A library of materials is provided. A stimulus such as a stress or force is provided to each member of the library. A response (e.g., a resistance) of each o... | 02/22/2005 |
| 6845653 | Coating stretch tester A test apparatus and method for predicting the minimum runnable flow of a curtain coating fluid by forcing the coating fluid out of a small round tube opening with less flow rate than is required for momentum to exceed the contracting forces of surface tension. The ... | 01/25/2005 |
| 6845654 | Method for measuring the surface tension of an aqueous solution The present invention is directed to a method for determining the surface activity properties of an amphiphilic substance, such as a drug, the method including a step wherein the surface tension of an aqueous solution of the said substance is measured at its air-wat... | 01/25/2005 |
| 6703067 | Coating method with improved coating uniformity by choice of surfactant composition A method for measuring the dynamic surface tension (DST) of a proposed outer layer of a liquid composition, to be curtain or slide hopper coated, over a range of surfactant levels to determine the surfactant concentration which produces the maximum resist... | 03/09/2004 |
| 6701778 | Coating stretch tester A test apparatus and method for predicting the minimum runnable flow of a curtain coating fluid by forcing the coating fluid out of a small round tube opening with less flow rate than is required for momentum to exceed the contracting forces of surface te... | 03/09/2004 |
| 6450974 | Method of isolating surface tension and yield stress in viscosity measurements A method for isolating the effects of surface tension and/or yield stress of a fluid that is flowing in a U-shaped tube wherein one or both legs of the U-shaped tube is monitored over time for the changing height of the respective fluid columns therein. A... | 09/17/2002 |
| 6185989 | Device for dynamic measurement of the surface tension of a liquid The invention relates to a device for dynamic measurement of the surface tension of a liquid by the bubble pressure process. The device is characterized by a moving measuring device with a flexible lead, conveying at least compressed air, to a sensor head... | 02/13/2001 |
| 6119511 | Method and apparatus to measure surface tension by inverted vertical pull A method and apparatus is presented for determining surface tension of a liquid or interfacial tension between two dissimilar liquids by using a rigidly suspended probe with small sample sizes and by measuring probe force using a top-loading balance used ... | 09/19/2000 |
| 5827951 | Solderability test system A new test method to quantify capillary flow solderability on a printed wiring board surface finish. The test is based on solder flow from a pad onto narrow strips or lines. A test procedure and video image analysis technique were developed for conducting... | 10/27/1998 |
| 5824887 | Method and device for measuring the surface tension of a liquid composition in a curtain The invention relates to the measurement of the dynamic surface tension of a liquid, particularly a liquid forming a curtain. The measuring device includes introducing, into the curtain, an obstacle adapted to create a standing wave defining two inverted ... | 10/20/1998 |
| 5798455 | Storehouse for use in storage of clean materials A storehouse is constituted including a clean room 12 and a storage space 10 for storing clean materials, which is isolated from the clean room. The clean air for storage is generated by a storage air generator 36 and is supplied to the storage space 10 t... | 08/25/1998 |
| 5792945 | Apparatus for determining the amount of a surfactant dissolved in a solution An apparatus for determining the amount of any chemical substance exhibiting a surface activity. A monomolecule film including a surface active substance exhibiting a surface activity is formed on a surface of a surface active substance solution in which ... | 08/11/1998 |
| 5792941 | Measurement of surface tension and viscosity by open capillary techniques An open-channel capillary is provided, having preferably a v-shaped groove in a flat wettable surface. The groove has timing marks and a source marker in which the specimen to be tested is deposited. The time of passage between the timing marks is recorde... | 08/11/1998 |
| 5661234 | Apparatus for measuring surface tension An apparatus for the measurement of the surface tension of liquids by means of a capillary tube for supplying gas, the tube having a connector and a nozzle, may be used in a measuring device. In order to create an apparatus that is easy to manufacture and... | 08/26/1997 |
| 5615276 | Method of measuring low interfacial tension by pendant drop digitization The present invention is related to a method of measuring low interfacial tension of a two-phase fluid system by pendant drop digitization, in which a silhouette of a pendant drop is created and photographed, its video image is digitized, and a plurality ... | 03/25/1997 |
| 5590560 | Apparatus for measuring viscosity or thickness, surface tension and surface dilational elasticity An apparatus and method to measure different properties of a liquid film or coating traveling or resting on a horizontal support, including dynamic viscosity, dynamic surface tension and surface dilational elasticity, the apparatus comprising: a series of... | 01/07/1997 |
| 5479816 | Method of physical-chemical analysis based on the control of interface tensions, and corresponding apparatus Process and apparatus for analyzing the characteristics of a liquid/fluid interface, especially in the presence of surface-active agents. A tensiometer operates according to the principle of the suspended drop and the amount of liquid injected in the drop... | 01/02/1996 |
| 5428990 | Method of evaluation segregation of solid-liquid interface and segregation apparatus thereof A method and apparatus for evaluating a segregation at a solid-liquid interface, capable of specifying and measuring quantitatively a segregation substance, that is, a substance which precipitates preferentially on a solid surface from a liquid or remains... | 07/04/1995 |
| 5394740 | Captive droplet interfacial tensiometer and methods of use thereof A method and an apparatus for determining the interfacial or surface tension, static or dynamic, between two liquids or between a gas and a liquid under conditions of varying temperature and pressure; and a method for adjusting the interfacial or surface ... | 03/07/1995 |
| 5305632 | Method and apparatus for measuring interfacial tension of a liquid using the capillary rise method A method and apparatus for determining the presence of surfactants in a liquid, such as a jet fuel or diesel fuel, by using the capillary rise technique, wherein an enclosed evacuated space is provided which is partially filled with water. A capillary tub... | 04/26/1994 |
| 5293773 | Method for determining the wetting preference of particulate solids in a multiphase liquid system A method is provided for determining the wetting preference of particulate solids, for example sand, dispersed in a multiphase liquid medium having a continuous phase and a discontinuous phase, for example a water-in-oil emulsion. A dispersion of the part... | 03/15/1994 |
| 5269176 | Method for determining liquid/liquid interfacial tension and dynamic interfacial tension reduction A method is disclosed for providing data useful in evaluating the dynamics of surfactants used to reduce interfacial tension in a system having two immiscible liquids and one or more surfactants. The method involves rapidly growing a drop of a first liqui... | 12/14/1993 |
| 5150607 | Spinning drop tensioextensiometer A spinning drop tensioextensiometer provides for the ability to rotate a tube carrying two different polymers, under conditions which keeps the polymers melted, and which causes the less dense polymer to form a drop of a generally cigar shape. By measurin... | 09/29/1992 |
| 5121636 | Surface energy meter A surface energy meter (10) includes a probe (18) having two spaced apart electrodes (38 and 40) with a centrally located fluid dispensing head (36). When a fluid of known surface tension is dispensed onto a material (22) having unknown surface energy, th... | 06/16/1992 |
